HVAC Repair in Mableton, GA
Homes here need heat from November through April and cooling from May through September. If your system quits, tell us what it's doing and a licensed contractor who covers Cobb County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year, on a system that gets little rest
In Mableton, your system runs almost year round. Heat from November through April, then cooling from May through September. Only a few weeks in between when it can sit idle.
Winter nights averaging 34°F mean the furnace cycles on and off through the night, and each start puts wear on the igniter. Summer afternoons averaging 88°F push the air conditioner to run long stretches to keep up, which wears on the compressor and the capacitor that gets it started. Add in the storms, 70 damaging wind events and 5 winter storms over the past ten years, and the power outages that come with them. Most systems restart on their own once power is back, but a storm that knocks out power for a day can leave a house without heat or air until it does.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 34°F
- the average winter night it heats against
- 88°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $180 a year off heating and cooling for a typical Cobb County home.
Estimates for a typical Cobb County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Georgia fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
Georgia requires HVAC contractors to hold a state license.
The State Construction Industry Licensing Board is the body that holds this license. It covers the contractor as a whole, not the individual job, so the same license that lets a contractor take on an installation is what lets them take on a repair like this one.
For a heating and cooling repair, that license is what stands behind the person doing the work. Georgia does not carve out repairs as a separate category. The contractor working on your system is working under the same license the state issued them for any HVAC job.
Source: Georgia Secretary of State
- Why is my heat not working?
- Start with the thermostat and the breaker before you assume the worst. If it's a gas furnace, check whether the pilot or igniter is lighting at all, since a failed igniter is one of the most common reasons for no heat. If you hear the blower running but feel no warm air, the problem is more likely with the burners or gas supply than the fan. With 68.2% of homes here heating with gas, a pilot or ignition problem is worth ruling out early, but a licensed contractor needs to confirm what's actually wrong.
- Why is my system running but not cooling the house?
- If air is moving but it's not cold, check the filter first. A clogged filter starves the coil of airflow, and that can cause it to ice over so the air coming out feels warm or weak. Also check that the outdoor unit isn't blocked by leaves or debris, since it needs open airflow to release heat. If the filter is clean and the outdoor unit is clear, the system likely needs a contractor to check refrigerant levels or the coil itself.
- What can I check before calling for HVAC repair?
- Check the thermostat settings, the batteries in it, and the breaker for the system before anything else. Replace the air filter if it's dirty, since restricted airflow causes problems on both the heating and cooling side. Look at the outdoor unit for leaves, ice, or anything blocking it. If the system still isn't working after that, a licensed contractor can diagnose what's actually wrong. Georgia requires HVAC contractors to hold a state license, so confirm that before letting anyone work on the system.


